Collision of a liquid drop on the edge region of a plate heated above the Leidenfrost temperature

Collision of a liquid drop on the edge region of a plate heated above the Leidenfrost temperature A liquid drop colliding on the edge region of a heated plate at a temperature above the Leidenfrost temperature were investigated experimentally. To determine the edge region of a plate, it is not a matter as simple as comparing the size of the drop and the plate. The width of the edge region is largely determined by the tangential velocity component of the colliding drop. The collision processes near the edge of a plate were found to be drastically different from those far from the edge. Generally, a collision process far from the edge comprises simply the flattening, retracting, and reflecting of the colliding drop. A collision near the edge, however, involves more complicated processes. When the tangential velocity component of the drop is small, disintegration of the drop through reflection is weakened while drop splitting or deflection by the edge can be observed. When the tangential velocity component of the drop is large, drop splitting by the edge is lessened while the stretching-out separation of the flattened drop outside the edge greatly enhances the disintegration of the drop. Simple physical models are constructed to describe some of the collision processes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Collision of a liquid drop on the edge region of a plate heated above the Leidenfrost temperature

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Publisher
Springer-Verlag
Copyright
Copyright © 2009 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-009-0652-3
Publisher site
See Article on Publisher Site

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